zooplankton

Question 1

what is the pelagic zone?

Answer 1

open water column of oceans and lakes, away from the shore and the bottom.

Question 2

what is the benthic zone?

Answer 2

bottom of the ocean or lakes, including the sediment and substrate.

Question 3

typically, what is in pelagic ecosystems

Answer 3

zooplankton, bacteria, phytoplankton

Question 4

typically, what is in benthic ecosystems

Answer 4

coral reefs and kelp

Question 5

what are some characteristics of zooplankton?

Answer 5

Large size range: microscopic to several meters
Capable of limited movement (not against current)
Require organic substrates (herbivores, carnivores,
detritivores, omnivores)

Question 6

explain the pelagic food web.

Answer 6

nutrients ->phytoplankton -> zooplankton -> fish

Question 7

what are some types of zooplankton?

Answer 7

zoo flagellates, ciliates,

Question 8

characterized by “cilia” on their periphery used for movement and feeding
- feed on small to medium sized phytoplankton and smaller microzooplankton
- Encounter feeders

Answer 8

ciliates

Question 9

are jellyfish considered to be zooplankton?

Answer 9

YES. we call this macrozooplankton

Question 10

what are the two types of cnidaria ?

Answer 10

polyp(upwards mouth ) and medusa (downward mouth)

Question 11

the largest migration on earth encompasses

Answer 11

ZOOPLANKTON

Question 12

zooplankton do what kind of migration?

Answer 12

diel vertical migration

Question 13

the zooplanktons migration means what? explain the patterns

Answer 13

Zooplankton migrate downwards in the morning and upward at night
Avoid visually hunting fish, UV radiation, currents
Large zooplankton go deeper than small ones (size is important)
Amplitude of migration is larger in clear lakes than in more turbid lakes hiding from visually hunting fish.

Question 14

explain the biological pump

Answer 14

photosynthesis, carbon fixation, vertical transport, and decomposition. that helps circulation co2 levels in the ocean